knaresboroughcastleravens

There are two pairs of white neck ravens for sale and a pair of Alpine choughs, I would like to purchase at least one pair, but which, the wnr should be the preferred choice. Then I want our ravens to bred a new pair might unsettle them, so maybe I should just wait until later next year, then they might be an odd raven chick that would be better for us. As we need a display raven not a breeding pair.